package com.amigo.online.consumer.common;

import java.util.Enumeration;

import javax.servlet.http.HttpServletRequest;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.openfeign.EnableFeignClients;
import org.springframework.context.annotation.Bean;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;


import feign.RequestInterceptor;

/**
 * 公共服务消费者
 * @author amigo
 *
 */
@EnableDiscoveryClient
@EnableFeignClients
@SpringBootApplication
public class AmigoOnlineConsumerCommonApplication 
{
	protected final Logger logger = LoggerFactory.getLogger(getClass());
    public static void main( String[] args )
    {
        SpringApplication.run(AmigoOnlineConsumerCommonApplication.class, args);
    }
    
    @Bean
    public RequestInterceptor headerInterceptor() {
    	return template-> {
    		ServletRequestAttributes attributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes();
            HttpServletRequest request = attributes.getRequest();
            Enumeration<String> headerNames = request.getHeaderNames();
            if (headerNames != null) {
                while (headerNames.hasMoreElements()) {
                    String name = headerNames.nextElement();
                    String values = request.getHeader(name);
                    logger.info("headers----"+name+":"+values);
                    template.header(name, values);
                }
            }
    	};
    }
}
